Wii Warm Up: The Gun of the Dead: Overseas

So Sega is releasing an unbelievably awesome gun shell for use with The House of the Dead: Overkill ... in Europe and Australia. No word yet on the US. The Aussie version even (optionally) comes packaged with two of the things!

We can't imagine it would make a difference, but if you're on the fence about Overkill, would the availability of an officially licensed, quite cool-looking accessory push you over the edge? Conversely, does the lack of such an item in the US make you feel somewhat cooler on the title? Or do gun shells just not matter all that much?